Flanged 31 spline axle axles have 3.15" bearings installed. axles have three bolt patterns in all axles, 5 x 4.5" small ford, 5 x 4.75" GM and 5 x 5". axles are cut to length to match the housing. 4 bolt axle retainers included, Big Ford New Style (Torino) with 3/8" bolt holes.
